Machine for making stereotype-plates.



G. SEIDEL.

MACHINE FOR MAKING STEREOTYPE PLATES.

9 SHEETS-SHEET I.

in van? Tm: COLUMBIA PLANOGRAPH 60., WASHINGTON, D. r:

G. SEIDEL. MACHINE FOR MAKING STEREOTYPE PLATES.

AP PUCATION FILED APR. 21, 19-14.

Patented Mar. 14,1916.

9 SHEETS-SHEET 2;

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G. SEIDEL.

MACHINE FOR MAKING STEREOTYPE PLATES.

Patented Mar. 14,1916.

APPLICATION FILED APR. 21, I914. 1,175,477.

9 SHEETSSHEET 3.

V14 Tmesses THE COLUMBIA PLAl loGRAPM c0.. WASHINGTON, D. c

G. SEIDEL.

MACHINE FOR MAKING STEREOTYPE PLATES.

APPLICATION FILED APR. 21. 1914.

1,175,477. Patented Mar. 14,1916.

9 SHEETS-SHEET 4.

Wilhc W1 1111: COLUMBIA PLANOGRAPH co.. WASHNGTDN, u. c.

G. SEIDEL MACHINE FOR MAKING STEREOTYPE PLATES.

APPLICATION FILED APR.21 1914.

1 1 75,477 Patented Mar. 14, 1916.

9 SHEETSSHEET 5- wrfhesses THE COLUMBIA PLANDGRAPH c0., WASHINGTON, D. c.

Q E T A L P F. P Y I 0 IE PM M T .D E SN IK GA M R 0 F rr. N H C A M APPLICATION FILED APR. 21, 1914.

THE COLUMBIA PLANOGRAPH (20., WASHINGTON, D. c

G. SEIDEL.

MACHINE FOR MAKING STEREOTYPE PLATES.

APPLICATION FILED APR.2I, 1914. 1,175,477. I Patented Mar. 14,1916.

9 SHEETS-SHEET 7- WASHING THE COLUMBIA PL G. SEIDEL.

MACHINE FOR MAKING STEREOTYPE PLATES.

APPLICATION HLED APR.2I,1914.

Patented Mar. 14, 1916.

9 SHEETS-SHEET 9.

In van/ta r.

GEo/Vj 651.05

TjHl: COLUMBIA PLANOGRAPH co., WASHINGTON, D. c.

Cir

1 ically making finished GEO RG SEIDEL, OF MUNICH, GERMANY.

MACHINE FOR MAKING- STEREOTYPE-PLATES.

Specification of Letters Patent.

Patented Mar. id, 19116.

Application-filed Apri121, 1914. Serial No. 833,440.

To all 10 ham it may concern:

Be it known that I, GEORG Snmnn, acitizen of the German Empire, and residing. at vlunich, Germany, have invented certain new and sefulImprovements in Machines for lrlaliing Stereotype Plates, of which the following is a specification. I.

The machines heretofore employed for automatically making finished stereotype it plates, 2'. 6. plates which are ready for printing, comprise two difierent elements, viz :a casting machine having two parts movable relatively to one another, 2.6. a core and a case or box; and a machine-tool by which the cast plate is tooled, the inside of the plate being bored out and the dead-head milled oif. Both the molding machine and the machine tool are incorporated in a single unit and so connected one with the other by conveyor devices that the plate after being cast is automatically conveyed out of the molding machine to the machine-tool.

A primary object of my invention is to provide an improved machine for automatstereotype plates in which the said two elements, 2'. e. the casting machine and the machine-tool, are incor-' porated in one single machine, but so,'however. that conveyer devices are entirely dispensed with. In my improved machine a single cylinder or core is used in performing all the working operations. Onthis one cylinder not only is the plate cast and the dead-head milled off, but the inside of the plate is alsomachined. The machine therefore not only is considerably simpler and cheaper but also occupies considerably less space than those known heretofore, the latter factor being a very important one in printing machinery.

A further object of my invention is to provide improved devices for removing the matrix from the core. I

To these ends,the invention consists in the construction, arrangement and combination of parts described hereinafter and pointed out in the claims.

One illustrative embodiment of my in vention and a modificationthereof are represented by way of example in the accompanying drawings, wherein Figure 1 is a side elevation of a preferred form of my improved machine, and Fig. 2 is a front elevation thereof, partly in section;

' these figures show how the machine may be back 3 will first be described.

connected to the copper for molten metal. Fig. ,3 shows the machine in elevation as seen from the side on which the furnace is located. Figs. 4 and 5 show the machine in vertical section; Fig. 5 is a section on line 55 of Fig. 5 illustrating a detail. Figs. 6, 7 and 8 show the most important parts of the machine in top plan view, partly in horizontal section, in the diflerent stages of the working operations; Fig. 6 showing the mold closed ready for receiving molten metal,'Fig. 7 showing the same during the removal of the dead-head and Fig. 8 during the boring out of the plate; in the positions shown in Figs. 7 and 8 the mold is open, the case or box of the mold being removed from the core. Fig. 9 shows the matrix holders as seen from the side of the case, Fig. 10 diagrammatically shown a modified form of the machine and Fig. 11 shows a plan view partly. in section of the various actuating mechanisms.

Referring to the drawings, 1 denotes the cylinder or core which serves as a support during the various operations. This cylinder is rotatable about the shaft 2 and, in combination with the semi-cylindrical back 3, forms themold. The molten metal supplied through the pipe 96 from the copper (Figs. 1 and '2) is run into the gap 4: between the core 1 and the back 3 (Fig.5) this gap is of larger cross-section above than below and the enlarged space 5 contains the de'adhead 6 of the plate 7. The back 8 can be shifted horizontally relatively to the core 1, and the mold is closed and opened in this manner. The matrix'S is placed against the inner wall of back 3 in known manner, it being inserted into the case while the mold is open and held at'its two side edges by the two holding bars 91(Figs. 7, 8 and 9). On the core or cylinder 1 ismounted a boring tool 10 which is used for boring out the inside of the plate (Fig. 8). For removing the dead-head 6 from the plate a milling tool 11 is employed, which is mounted on a shaft 12 at the side of the core (Figs. 3 and 7). In the illustrative embodiment the millingtool is driven by a separate electric motor 13.

The movements of the core 1 and the After the plate has been cast in the position shown inFigs. 5 and 6 and has sufficiently cooled, the mold isopened. For this purpose the back 3 iswithdrawn from the cylinder i prion. &

horizontally in the direct-ionof the arrow 14, and then occupies the position shown in Figs. 3 and 8. ll hile the back 1s belng withdrawn from the core, the latter rotates Y in the direction of the arrow 15. The'ca'st plate remains on the circumference of the core and is consequently guided past the milling tool 11 This cutter is started vas soon as the plate begins to pass it, and separates the dead-head 6 from the plate 7 (Figs. 3 and 7). the position to which it has been withdrawn,

but the core 1 continues to rotate. When,

' after leaving. the position shown in Fig. 7,

the core has rotated another 90, the plate abuts at its edge 16 against a stop 17 which is fast on thesemicylindrical member 18 serving as support for boring. Owing to the stop 17, theplate is therefore retained in its position while the core continues to rotate in the direction of the arrow 15, the said plate and core being'thusfseparated from each other. The milling tool 11 has by this time'ceased to work, but the boring tool now begins to operate and bores out the inside of the plate 7. Fig. 8 shows the boringtool at the moment when it is about to finish its work. As mentioned above, the

plate is held in position by the stop 17 and the member 18. lVhen the core has rotated about 90 from the position shown in these shaft 2 by means of the worm. gear 24 and the worm 25 which meshes with the worm gear 26 loose on the shaft 2 of. the core.

The movement of the core is controlledbv means of a cam 27 on the shaft 28 (Fig. Against the edgeof the cam 27 which is provided with a 'recess29 is'pressed alever 31 by means of a spring 30, which'lever turns around a fixed point .32 and which turns the shaft 33, see Figs. 4 and 5. As a consequence, a stop 34 whichis rigily .connected with the lever 31 will be moved downward, thus liberating; the anti-friction roller directly the roller of the lever 31 is pressedinto the cut out portion 29. The roller 35 is rigidly connected with the ratchet pawl 36. The twoelements are revolu'bly mounted around the point 36 in the lever35 1as shown in Fig.5 The lever 35 r is rigidly secured on the shaft 2 while the ratchet wheel 37, compare Fig. 11, is rigidly connected with the worm gear 26. The two wheels are loosely mounted on the shaft 2 and are continuously driven by the worm 25. The shape of the stop 34 is shown in The back 3 is retained in plan view in Fig. 5 'WhennoW the roller of the lever 31 enters the 'cut out portion 1 29 the roller 35 is liberated from the stop 34. The roller 35 and the ratchet pawl 36' thereupon turn around the fulcrum -36 actuated by a spring and the ratchet pawl 36 snaps into the ratchet wheel 37. In this manner the lever 35:"- will be coupled with the ratchet wheel '37 and the lever together with the shaft 2 will asla consequence, be

moved by the ratchet wheel 37. The cast- 7 ing core will therefore execute aturning;

Before it has completed one revolution, however, the lever 31 again leaves the cut out portion 29 and the stop 34 moves outwardly. Shortly before' the completion of one revolution the roller 35 hits against the stop 34. It will therefore again arrive in the position indicated in Fig; 5 and the ratchet pawl 36"will be lifted from the 9 '7 ratchet wheel 37. The coupling between the worm 26 and the shaft 2 .is consequently broken and the casting core will again stand still. i

The movement of the back3 in a horizontal direction is likewise derived from theshaft 22.' The spur gear'38 fast on this shaft drives the shaft 42 through the medium of the gear wheels 39, and '41. The worm 43 fast on this shaft 42 meshes with the worm gear 4-4 which is loose on the shaft 28 and drives'this shaftthrough the medium of the pawl 45 and the ratchet-' wheel 46. The movement of the back can be stopped by lifting the pawl 45. v The movement of the back is controlled by a cam-wheel 47 on the shaft 28. This cam 47 drives the gear wheel 48loose on the shaft 3 28 when the pawl 49 mounted on the wheel.

48 engages with the teeth 50"or5l of the cam-wheel 47. The spur gear 48 drives the spur gear 53, which is on the shaft 54. fixedly Journaled in the frame of the machine,

throughthe medium of an intermediate gear 52. The reciprocation of the back 3 takes place with the assistance of the cam sleeve as shown in Figs. 3 and 5. By turning the shaft 54 the crank arm'55f is revolved out of the position shown in Fig. 5 into the position shown in Fig. 3 and the block 56 will then be movedba'ck and forth in, the guide 57 of the slide 58. The back 3 which forms one part with the slide 58 will then be moved out of the position indicated in Fig. 5 into the position shown in Fig. 3.

By a continued turning of the shaft 54 and the crank arm the back 3 will be returned into the position shown'in Fig.3 and the form will again be closed. The stoppage of the back after the mold is closed is effected by means of a link 59 slidable horizontally to and fro in the bearings 60 and 61. In the position shown in Fig. 3 the pawl 49 and the gear wheel 48 have been turned a quarter revolution. The lever 62, which is firmly connected with the pawl 49, then slides on the stop 63 of the link 61; the pawl l9 is hereby disengaged from thecamavheel 47. The tooth 5O then-slides under the pawl e19. A reciprocatorv motion is imparted to the link by means of the twogear wheels 6t and and aneccentric gear 66. In consequence of this movement the pawl 49 is released by the stop 63 of the slide 58.

The pawl 49 which pressed by a spring,

two holding bars 9. VJhen the mold is closed the lower edge of the matrix rests on a frame 68 whose upper part is tapered, for the purpose of casting the facets, and is rigidly connected with the rails 70, on which the bars 9 slide. As is well known, thematrix has generally been removed from the plate after casting and when the mold is opened by first raising theedges of the matrix. In the improved machine I arrange that when the matrix begins to be detached,

its edges are moved approximately radially relatively to the core outward. dial movement is imparted tothe matrix by a special movement given to its holding bars 9 (Figs. 6, 7 and 8). These holding bars slide on the rails or bars-70 which are integral with the seinicylindrical frame 18. These l1ol.di1igbars are also slidable on the angle bars 71 in the direction ofthe arrow 72. The angle brackets'are held'by means of plates 73 and 7a which are attached by square-headed screws 7 5 to the side wall of the back 3. the screws75 passing through slots 76 in these bars 71,which are thus displaceable; see i, 1, 2 and The plates T l. are secured to the screws 75 by means of rivets as indicated in Figs. 1 and 2. It is thus provided that the angle bars 71 can shift relatively to theback 3 a distance depending on the length of the slots 76.

The holding bars 9 have slots 77 in which.

the guides 78 slide. The latter are rigidly connected to the back 8. The lever 80, which is fulcrumed at 81 and pulled downwardly by a spring or by gravity, projects over the stop 79 of the lracket 81. The lever 8O locks the bracket by means of the lug 82 as long as this lever is in the position shown in 1. Consequently, when the back 3 moves in the direction of the arrow 83 the bars 9 and 71 are prevented by this lever from moving with the case. I

The mechanism just described above operates as followsz- Nhen the mold is This r: i

again denoted by l, the back by opened, the back 3 first of all moves in the direction of the arrow 83 and takes with it the arm or guide 78 which is fast on the caseand slides in the slots 77 in the bars 9 and 71. Since these bars are locked by the face 82of the lever against motion in. the direction of the arrow 83, the outwardly directed portion 84- of the arm 78 forces the holding bar 9 outward in an approximately radial direction. This bar holding the side of the matrix 8 drives the latter so that the matrix holder is lifted away approximately radially. Fast on the case is a pin 85. On the case moving still farther back, this pin 85 bears against the slanting face 86 of the lever 80 and therefore raises this lever to such an extent that the bars 9 and 71, which had beenlocked by the lug 82 on the lever 80, are now released. Both the bars 9 and 71 can now therefore move in the direction.

of the arrow 83, and they are taken by the arm 7 8 in the direction in which the back is moving. The lever 80 is rigidly connected with the core or the machine housing so that when the back moves outwardly in the direction of arrow l-i, see Fig. 3 during the opening of the form it presses against the beveled surface 86and-the lever 80 will then be raised and the coupling with the matrix ledges through lug 82 is released so that the bars 9 and 71 may be raised in the direction of the arrow 8%. The matrix is therefore now detached from the plate. The matrix holders can be opened by hand by means of the lever 87, the toothed rack 88 and the pinion 89. This will be done particularly when a new matrix is to be inserted.

"When the core has been moved back into its initialfposition andthe plate is no longer held by the ribs 91 of the core the tooled stereotype plate lies on the plate 92; it descends under the action of gravity. It can then be removed from the machine in the direction of the arrow 98 by a workman. The plate is prevented from falling too fast and impacting too violently by the counter weight 941.

In the improved machine the matrix holders are so formed that they simultaneously constitute the closure device for the mold. No special closure devices are therefore requisite.

Referring now to Fig. 10, thecore is here 3 and the cast plate by 7. In this modification the back remains stationary. After the plate is cast and has become solid the mold is opened by the core 1 being slid inthe direction of the arrow 9?; simultaneously with or subsequently to this movement the core is rotated through 180 in the direction of the arrow 98. The plate 7 now abuts against a second I semicylindrical member 99, which serves as a carrier for boring. On the core 1 rotating further, the plate 7 is t the axis of the core and with the corea mold.

held as before by the fixed stop 101 and is.

boredout by the boring tool mounted on the core 1. I V

The motor 13 for drivingthe milling tool been closed. The valve is controlled by the rod 103 which turns the axle 10 1 geared with the valve. The rod 103 is driven by the lever 105 which is rocked about its fulcrum 107by the eccentric 1-06. 1 I

I claim v1. In a machine for casting and tooling stereotype plates, the combination of a cylindrical core rotatable about its longitudinal axis and constituting a boring spindle for boring out the inside ofa plate cast about the same, and a semicylindrical back movable in a direction at right angles to adapted to form 2. In a machine for casting and tooling I stereotype plates, the combination of a cylindrical core rotatable about its longitudinal axisand constituting a boring spindle for boring out the inside of a plate east about the same, and a semicylindrical back movable'in a direction at rightangles to the axis of the core and adapted to form with the core a mold, with a boring suppo'rt'arranged in such manner that the finished cast plate located on the core passes out of the casting position into the boring support when the core is rotated half a" revolution.

3. In a machine for casting and tooling stereotype plates, the combination of a vertical cylindrical core which is rotatable about its longitudinal axis and simultaneously constitutes a boring spindle for boring a plate cast about the same, and asemi-' cylindrical back adapted to form a mold with the core and movable horizontally for opening and closing the mold. V

4. In a machine for casting and tooling stereotype plates, the combination of a cylindrical core rotatable about its longitudi- V nal axis and constituting a'boring spindle for boring out the inside of a plate cast about the same, and a semicylindrical back. movable in a direction at right angles to the axis of the core and adapted to form with the core a mold, with a boring support arranged coaxial with the core in such manner that after a plate has been cast about the core it can be transferred from the mold into the support by turning v the core.

5. In a machine for casting and tooling I stereotype plates, the combination of a cylindrical core rotatable about its longitudinal axis and constituting a boring spindle about its longitudinal axis andsimultane' ously constitutes a boring spindle tor boring a plate cast about the same, and a semicylindrical back adapted to form a mold with the core and movable horizontally for opening and closing the mold, witha boring support which is arranged coaxially with the core in such manner that a plate cast in the mold is transferred 111170 the bor ing support from the mold bythe rotation of the core; V

7. In a machine for casting and tooling stereotype plates, the combination of a cy-' lindrical core rotatable about its long'itudia nal ax1s and constituting a borlngspindle for boring out the inside of a plate cast about the same, and a semicylindrical back movable in a directionat right angles to the axis of the core and adaptedtoform with the core a mold, with a milling tool for outting off the dead-head from a plate cast in the mold when the plate is being removed from the mold, and a motor for driving said milhng tool.

8. Ina machine for casting and tooling stereotype plates, the combination of a cylindricalcore rotatable about its longitudinal axis and constituting a boring spindle for boring out the inside of a plate cast about the same, and a semicylind'rical back movable in a direction at right angles to the axis of the core and adapted to formiwith the core a mold, with driving means for re ciprocating said'case, andnieans for discon: necting the connection between the driving means and theback after the mold has been closed and automatically establishing the connection only after a predetermined time,

9. In'a machine for casting and tooling stereotype plates, the combination of a cylindrical core rotatable about its longitudinal axis and constituting a boring spindle for boring out the inside of a plate cast about the same, and a semicylindrical back movable in a direction at right angles to the axis of the core and adapted to form with the core a mold, with driving means, coupling means connecting the latter with the core, and means for disconnecting the coupling means after theinold has been closed and automatically connecting the same again only after a predetermined time.

10. In a machine for casting stereotype plates,the combination of a cylindrical core and a back which is adapted toiiorm a mold with the core and to move horizontally and thereby to open and close the mold, two matrix holders, and a locking device for pre-' venting the movement of the matrix holders in the direction of movement ofthe core at the commencement of the movement of the I moving device comprising angle brackets firmly connected with the back and holders adapted to hold the edges of the matrix and to slide in a radial direction on said angle brackets when the mold is opened.

12. In a casting machine, the combination of a cylindrical core, a semicylindrical back adapted to form a mold with the core, two matrix holders, and guides rigidly connected with the back and adapted to move the matrix holders approximately radially ontward when the mold is being opened.

In testimony whereof, I aihx my signature in the presence of two witnesses.

' GEORG SEIDEL.

Witnesses REINoLD NANNIANN? A. W. W. Co'rTLn.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

